epistemiclife writes: The company which spun off Mozilla has released beta 1 of version 9.0 of its long-running Navigator browser for Linux, Windows, and Mac OS X. This is notable, since version 8.0 was exclusive to Windows, making this the first major update for OS X and Linux, since version 7.2. It is based on Firefox 2.0, and "Netscape extensions" for Firefox 2.0 are available as add-ons to Firefox users.